103.12% is the change from 449 to 912
Calculation steps:
[( 912 - 449 ) ÷ 449] x 100 = 103.12%
Formula
Percentage change = [(912 - 449) / 449] x 100
Subtract the new number by the original number
912 - 449 = 463
463 ÷ 449 = 1.0311804008908685
1.0311804008908685 x 100 = 103.12%